DE69110442T3 - Materialpegelanzeiger mit einem Lichtzustandsanzeiger und externen Prüfgeräten. - Google Patents
Materialpegelanzeiger mit einem Lichtzustandsanzeiger und externen Prüfgeräten.Info
- Publication number
- DE69110442T3 DE69110442T3 DE69110442T DE69110442T DE69110442T3 DE 69110442 T3 DE69110442 T3 DE 69110442T3 DE 69110442 T DE69110442 T DE 69110442T DE 69110442 T DE69110442 T DE 69110442T DE 69110442 T3 DE69110442 T3 DE 69110442T3
- Authority
- DE
- Germany
- Prior art keywords
- indicator
- material level
- test devices
- external test
- light status
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/282—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/226—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water measuring the braking of a rotatable element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
- G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
- G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
- G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63981591A | 1991-01-09 | 1991-01-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE69110442D1 DE69110442D1 (de) | 1995-07-20 |
DE69110442T2 DE69110442T2 (de) | 1995-10-12 |
DE69110442T3 true DE69110442T3 (de) | 2000-02-17 |
Family
ID=24565659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69110442T Expired - Fee Related DE69110442T3 (de) | 1991-01-09 | 1991-12-11 | Materialpegelanzeiger mit einem Lichtzustandsanzeiger und externen Prüfgeräten. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0494398B2 (de) |
JP (1) | JPH04315921A (de) |
KR (1) | KR100196450B1 (de) |
AU (1) | AU638882B2 (de) |
CA (1) | CA2057556C (de) |
DE (1) | DE69110442T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023305A1 (de) * | 2000-05-15 | 2001-11-29 | Grieshaber Vega Kg | Verfahren zur Ansteuerung einer Wandlereinrichtung in Füllstandmessgeräten und Vorrichtung zur Durchführung des Verfahrens |
DE10347333A1 (de) * | 2003-10-11 | 2005-05-12 | Walther Spritz Lackiersyst | Verfahren zum schonenden Fördern von empfindlichen Klebstoffen sowie Anordnung zur Durchführung eines solchen Verfahrens |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5485401A (en) * | 1993-06-14 | 1996-01-16 | Scully Signal Company | Method and apparatus for testing overfill protection devices |
US5446444A (en) * | 1993-12-17 | 1995-08-29 | Robertshaw Controls Company | Capacitive threshold detector test circuit |
DE4402234C1 (de) * | 1994-01-26 | 1995-04-20 | Endress Hauser Gmbh Co | Verfahren und Anordnung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstands in einem Behälter |
CN109724672B (zh) * | 2019-03-01 | 2021-02-02 | 北京锐达仪表有限公司 | 电磁波料位开关的发射器及电磁波料位开关 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4147906A (en) * | 1977-11-07 | 1979-04-03 | Bindicator Company | Rotation paddle bin level indicator |
US4279078A (en) * | 1980-02-12 | 1981-07-21 | Conoco, Inc. | Fluid presence detector |
US4499766A (en) * | 1982-08-25 | 1985-02-19 | Berwind Corporation | Capacitance-type material level indicator |
US4539547A (en) * | 1983-04-25 | 1985-09-03 | Ford Motor Company | Low liquid level sensing and warning circuit |
JPS61160212U (de) * | 1985-03-27 | 1986-10-04 | ||
US4695685A (en) * | 1986-07-28 | 1987-09-22 | Berwind Corporation | Rotating paddle bin level indicator |
US5048335A (en) * | 1987-10-01 | 1991-09-17 | Bindicator Company | Capacitance-type material level indicator |
-
1991
- 1991-12-11 EP EP91121340A patent/EP0494398B2/de not_active Expired - Lifetime
- 1991-12-11 DE DE69110442T patent/DE69110442T3/de not_active Expired - Fee Related
- 1991-12-12 CA CA002057556A patent/CA2057556C/en not_active Expired - Fee Related
- 1991-12-16 AU AU89686/91A patent/AU638882B2/en not_active Ceased
-
1992
- 1992-01-08 JP JP4001629A patent/JPH04315921A/ja not_active Withdrawn
- 1992-01-09 KR KR1019920000205A patent/KR100196450B1/ko not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023305A1 (de) * | 2000-05-15 | 2001-11-29 | Grieshaber Vega Kg | Verfahren zur Ansteuerung einer Wandlereinrichtung in Füllstandmessgeräten und Vorrichtung zur Durchführung des Verfahrens |
DE10023305C2 (de) * | 2000-05-15 | 2002-10-17 | Grieshaber Vega Kg | Verfahren zur Ansteuerung einer Wandlereinrichtung in Füllstandmessgeräten und Vorrichtung zur Durchführung des Verfahrens |
DE10347333A1 (de) * | 2003-10-11 | 2005-05-12 | Walther Spritz Lackiersyst | Verfahren zum schonenden Fördern von empfindlichen Klebstoffen sowie Anordnung zur Durchführung eines solchen Verfahrens |
Also Published As
Publication number | Publication date |
---|---|
KR920015123A (ko) | 1992-08-26 |
EP0494398A2 (de) | 1992-07-15 |
CA2057556C (en) | 1995-12-12 |
EP0494398A3 (en) | 1993-05-19 |
EP0494398B1 (de) | 1995-06-14 |
EP0494398B2 (de) | 1999-07-28 |
DE69110442D1 (de) | 1995-07-20 |
AU8968691A (en) | 1992-07-16 |
AU638882B2 (en) | 1993-07-08 |
CA2057556A1 (en) | 1992-07-10 |
JPH04315921A (ja) | 1992-11-06 |
KR100196450B1 (ko) | 1999-06-15 |
DE69110442T2 (de) | 1995-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |